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nydus/A Short History of the WorldPublic
Page 66 of 773
Table of Contents

VII THE FIRST BIRDS AND THE FIRST MAMMALS

SLAB OF LOWER PLIOCENE MARL
SLAB OF LOWER PLIOCENE MARL Discovered in Greece; it is rich in fossilized bones of early mammals

The Age of Reptiles lasted, it is now guessed, eighty million years. Had any quasi-human intelligence been watching the world through that inconceivable length of time, how safe and eternal the sunshine and

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